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United States Patent | 5,712,421 |
Raisanen | January 27, 1998 |
Apparatus for determining the actual and proportional amounts of a volatile fluid in a test staple is described. The test staple is stored in a sealed container after being collected and kept in the sealed container through testing. The volatile fluid of interest is evolved from the test sample and a carrier gas transports the volatile fluid past a sensor. The sensor determined the relative amount of the volatile fluid of interest in the carrier gas. The flow rate of the carrier gas is precisely known and is predetermined. A microcomputer is utilized to predict with great accuracy the actual and proportional amount of the volatile fluid in the test sample.
Inventors: | Raisanen; Walfred R. (Paradise Valley, AZ) |
Assignee: | Arizona Instrument Corporation (Phoenix, AZ) |
Appl. No.: | 593834 |
Filed: | January 30, 1996 |
Current U.S. Class: | 73/19.1; 73/76 |
Intern'l Class: | G01N 007/00 |
Field of Search: | 73/19.01,19.12,863.12,23.2,73,76 |
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Quintel Corporation--Karl Fischer Titrators Brochure. |